Answer:True
Explanation:
Light year is the unit of distance and not a unit of time.
Light year is used to measure astronomical distances.
It is defined as the distance which light travels in one year.
The distance which light travels in one year is around 9.46 trillion kilometers
Thus 1 light year = 
km.
Thus the given statement that A light-year is the distance that light travels in one year is true.
OK now that’s a lot to ask for but if you want someone to actually do that you’re gonna need a lot more points
The effect that the discovery of gallium have on the acceptance of the periodic table would be that <span>he predicted that there were 2 elements between zinc and arsenic which gave scientist the powerful tool. Hope this answers the question. Have a nice day.</span>
Decomposition, since the compound (AB) Breaks down to A and B alone.
Answer:
He should use a bar graph
Explanation:
Since this is a distinction between three very distinct categories a bar graph should be perfect
